Matrix-making plate and block attached.



No. 843,577. PATENTED FEB" 12, 1907 F. H. BROWN, J E. HANBAHAN (is G. A. BOYDEN',

MATRIX MAKING PLATE AND BLOCK ATTACHED:

APPLICATION FILED HAY18.1906.

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FRANK H. BROWN AND J OHN HAN RAHAN, OF BALTIMORE, AND GEORGE A. BOYDEN, OF MOUNT TASHINGTON, MARYLAND, ASSIGNORS TO NA- TIONAL COMPOSITYPE COMPANY, PO R ATION OF D ELAWARE.

OF BALTIMORE, MARYLAND, A COR- MATRIX-MAK ING PLATE AND BLOCK ATTACHED.

Specification of Letters Patent. Apnliaation at May 18,1905, Serial 1%. 261,035.

satell t s reb. 12, 190?.

1'0 rt/Z m/mm, it may concern:

Do it known that we, FRANK ll. BROWN 1 and JOHN E. HAXRAIIAN, of Baltimore, and l GEORGE A. Borer-1N, of Mount Washington, in the county of Baltimore, State of Maryland, have invented certain new and useful Improvem nts in Matrix-Making Plates and 1 Blocks A. melted; and we do hereby declare the following to be a full, clear, and exact de- 1o scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention pertains to matrix-making, l and has for its object securely and rigidly attaching the matrixqilate in which the electrodeposition is to be made to a master-block containing the type character, whereby the two are properly held together during the l deposition. l With the introduction of the sorts-machine for casting type invented by thesesame inventors the art of producing type at this time is being revolutionized, for the rea- I son that instead of making type under the present foundry practice with skilled labor and then distributing the type throughout l the country for the printers to use the print l ers are now producing type in their oifices with unskilled labor. '-This results in a great l saving of time and money and all'ords convenience in producing immediately type and sorts when needed. This innovation neeesl sitated the creation of various systems and inventions, not only with relation to the type-casting machine proper, but in molds, mold-making, matrices, and matrix-making, i and to one of these systeinsthe present in vention relates. l lleretotore the positioning of the matrixl 40 plate and the type character prior to the elecl trodeposition being made has been done in an uncertain and complicated manner, as reg lar printing-type was used for the type clair- :wtll', necessitating the building up of the pol 5 sitioning material to hold the type in its} place approximately with the nmtrimplate. This required time and great care and then only resulted in approximately locating the type character and plate in their correct position, which again necessitated a great deal of time and etlicient skill to finish the matrix correctly.

Inthe accompanying drawings, Figure 1 represents a front view of a master-block with the character in cameo. Fig. 2 is a side 'view of the same. Fig. 3 is a front viewofa matrixlplate with a hole in the same in which electro eposition is to be made of a type character. l ig. 4 is a side view of the same. Fig;

5 is a front --view of a matrix-plate with the' master-block secured thereto in the rear ofthe plate with solder tips. Fig. 6 is a side view of" the same. Fig. 7 is a front View of thereto in a modified form by means of rivets. Fig. 8 isa side view of'Fig. 7.

in preparing the plate B and block A- for a matrix-plate with master-block secured deposition the plate is placed over the face'of. the master block A, with its four sides a, b, c, T

and (l coinciding with similar surfaces of the master-block A. This is usually done by first placing the master-block in a frame of exact size to lit the dimensions a, b, c, and d and then placing the matrix-plate B on top of.t.he same, the )rojections ot' the frame being of sufficient depth to accommodate both .the master-block and the matrix-plate, and

while thus held correctly and accurately together the top and bottom of each are attached by means of a tip of solder h, as shown in Fig. 5, there being spaces formed inthe frame to permit same. After this is accom-' plished the two parts thus secured together are removed from the frame, with the result that the plateis in exact position with reference to the type character on the masterblock without requiring any adjustment, uncertain measurement, or skilled labor. The master-block and matrix-plate are then placed in a waningdlask containing as man as convenient and the surtace'covered wit wax, except where deposition is to take plao over the character. The whole is then slisj pended in a battery for electrodepositioi ii After such electrodeposition has been ac complished the flash is removednfrom the battery, the wax scraped from the arts,

the matrix-pl ate is removedfrom t enmster- I,

block A liy breaking the solder tipping, aftpr fthe said matrix ready for commercial pur oses towhich all that is required to finis remove any'excess deposition on t e back of the same. Consequently there is little or no N lilnishing, and matrices are produced at a,

'5 taching the 1natrix-plate B to the masterblock A by means of solder tipping a modifithe two may be devised and, would be within minimum cost and of such precise accuracy that they can be sedinanywstenlwLmoldw without adjustment.

As shown in Figs. 7 and 8, instead of atcation of same can be accomplished by inserting rivets i, which answer thesame purpose as solder tipping already- (lGSCIllKLl and with the same result as above set forth. Also any other equivalent ways'of attaching this-claim. v I

Having described our lnvention, what we a matrix-plate, the faces of which are of ap- -p-roxim"ately the same dimens ons, and 'means for holding said block and matrixcurately positioned for further processing.

3. The combination of a master-block and a matrix-plate, the faces of which are of ap proximately the'same dimensions, said plate and block being rigidly united by tips of solprocessing.

In testimony whereof we have signed this specification in the presence of two subscrib in'g witnesses.

claim, and desire to secure under- United States Letters Patent, is i 1. The combination of a master-block and l a matrix-plate the-faces of which are of apj proximately the same dimensions, whereby 20 said late and 'block may be accurately as- Q semb ed for subseqnent processing. 1 2. The combination 0 a inasterblocleand i plate rigidly together, whereby they are acder applied to their contiguous edges, whereby they are accurately positioned for further 

